Since the discovery of topologically protected states in chiral magnets, the field of non-collinear magnetism has undergone a renaissance of research activity in recent years. This has led to the identification of many forms of non-collinear spin order in bulk materials, including skyrmions and anti-skyrmions [1]}, merons and anti-merons [2]}, solitons [3]}, hopfions and chiral bobbers [4]}, [5]}, [6]}. Essentially all of these forms of magnetic order are either the result of hierarchical coupling terms, or competing interactions generating various forms of frustration, both leading to the formation of nanoscale spin structures in real-space.
